What is dependency injection (DI) in AngularJS?
What is dependency injection (DI) in AngularJS?
9724-Jun-2024
Updated on 25-Jun-2024
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What is dependency injection (DI) in AngularJS?
Ravi Vishwakarma
25-Jun-2024Dependency Injection (DI) in AngularJS is a software design pattern that deals with how components get hold of their dependencies. It allows the creation of dependent objects outside of a class and provides those objects to a class in various ways. DI is integral to AngularJS as it helps manage the dependencies of various components like services, controllers, and directives, making the code more modular, maintainable, and testable.
Key Concepts of Dependency Injection in AngularJS
$provide
.1. Inline Array Annotation
The most robust way to declare dependencies, especially when minification is involved.
2. $inject Property Annotation
Another approach where dependencies are explicitly specified using the
$inject
property.How DI Works in AngularJS
service
,factory
,provider
, etc.Benefits of DI